Trimming-machine.



A. IVlcK. ALEXANDER.

TRIMMlNG MACHINE.

APPucATmN men 1AN.25,1913.

i121 g't, Patented; Jan. 23,1917.

3 SHEETS-SHEET l.

nnnngnnn/nnnnnhnnm f@ A, MCK. ALEXANDER.

TRIMMING MACHINE.

APPLIcAxoN FILED JAN.25.1913.

Patented Jan. 23, 1917.

3 SHEETS-SHEET 3.

STATES @ldlhliCE ALEXANDER MCKLOP ALEXANDER, 0F BEVERLY, MASSACHUSETTS, ASSIGNR TO UNETED Sli-EOE MACFTNERY CTJANY, 0F RATER/SON, NEVI JERSEY, A CORPRA- TION 0F NEW" JERSEY.

D Specification of Letters Patent.

Patented Jan.. 23, i917,

Application filed January 25, 1913. Serial No. 744,127.

To @ZZ whom t may concern.'

Be it known that l, ALEXANDER M. ALEX- ANDER, a citizen of the United States, residing at Beverly, in the county of Essex and State of Massachusetts, have invented certain new and useful improvements in Trimming-Machines; and i do hereby declare the following to be a full, clear, and exact description of the invention, such as Will enable others skilled in the art to Which it appertains to make and use the same.

Vi`his invention relates to trimming machines.

Certain features of the invention relate particularly to machines for trimming the inseams of boots and shoes, and are specially designed as improvements on machines of the type shovvn in the patent to French @s lffeyer, No. 558,37 9, dated April le, 1896, and the patent to Johnson, No. 956,971, dated ay i3, 1910, but may' also be embodied in other Qhoe trimming machines.

in machines of the type disclosed in the above patents, a deal of difficulty is occasioned by the accumulation of scraps of ieather or other material cut from the shoe iv'thin the knife -and by the lodging of such scraps between the Working parts of the macl e acont the acting edge of the knife, winch seriously interfere with the operation of the machine. rlhe friction between these vscraps of leather and the rapidly moving knife often causes the knife to become very hot and lose its temper. lt has been difficult to clear avvay these scraps because the interior of the knife is obstructed by the other parts of the machine and because of the close relation of the guides, the feeding device, and the knife guard to each other, and to the knife adjacent the acting portion ,f the edge of the knife. The knife of an inseam trimming machine becomes dull quickly and its edge is often nicked'and broken by contact with lasting tacks. rllhis necessitates frequent grinding of the edge of the knife in order to keep it in satisfactory operating condition. rli`he repeated grinding of the edge of a knife soon abrades aivay the tempered portion of the knife and renders it unfit for further use. it is, therefore, frequently necessary to detach the knife from the machine and to replace it with a new or unused knife. in prior machines of this type in order to remove the knife it has been necessary first to remove certain of the parts adjacent to the knife, and When another knife has been secured in place on the knife carrying shaft it has been necessary after replacing the detached parts to readjust these parts to bring them into proper .vorkino relation With the knife. The removal of a knife and the attachment of a neiv knife in place in the machine, together With the necessary readjustments of the parts required a considerable amount of labor and time.

One object of the invention is to improve the construction and arrangement of various parts of shoe trimming machines of the above type with a view of enabling the scraps of material Which may lodge about the Working parts of the machine to be cleared away easily, and 0f enabling the knife to be removed, another knife to be secured in place, and the machine restored to operating condition more quickly and readily than in 'the machines heretofore constructed.

The frequent grinding to which the knife of an inseam t^imrning machine is subjected Wears away the edge of the knife rapidly, and this necessitates a readjustment of the knife laterally with relation to the devices which cooperate therewith during the trimming of the inseam. rilhe adjusting means with Wl ich -i iachines of this type have heretofore been provided is inconvenient to manipulate, and a further object of the invention is to provide machines of this type with improved means for adjusting the knife.

fn preparing a lasted shoe for subsequent operations, in addition to the trimming of the inseam the projecting free ends of the Welt are skived or beveled off at an angle to the plane of the Welt end. This operation is knoivn in the art as Welt butting and is usually performed by means of a hand knife, although machines have been produced for performing the operation.

Another object of the present invention is -to produce a unitary compact shoe trimming machine of simple construction having a sino-le trimming knife., and provided with devices for j'iositioninf; and guiding the shoe as the inseam of the shoe is presented to the ed of the knife, and with devices by 'which the free end of the welt may be presented in Welt butting position to the edge of the IVA y patents referred to above.

knife, all constructed and arranged so that after the inseamis trimmed by a simple, easy and convenient manipulation of the shoe, the end of the welt may be presented to the knife and skived off at the desired angle.

A still further object of the invention is to produce a novel and improved shoe trimming machine by which the free ends of'the welt may be presented to the trimming knife and skived off at the proper angle in a reliable and eilieient manner with the exercise of very little skill on the part of the operator.

lilith these objects in view the invention comprises various novel and improved features set forth in the following description land pointed out in the claims, the .adva

tages of which will be obvious to those skilled in the art.

ln the accompanying drawings illustrating the invention in its preferred form, Figure 1 is a front elevation of a machine embodying` the invention; 2 is a view in side elevation of the machine, looking` from the left; Fig. 3 a section taken substantially on the line 3-3 of 2; Fig. d is a section taken substantially on the line 4i-fl of FiO'. 2; Fig. 5 is a detail view in side elevation of certain. parts of the feeding device detached from the machine; 1Eig. 6 is a fragmentary view in section showing the trimming knife and the devices for locating the work in position to present the welt end to the knife; and Fig. 7 is a fragmentary view in side elevation illustrating the devices for locating the werk in position to present the end of the welt to the knife with the work in welt butting position7 the knife edge being indicated in dotted lines.

The machine illustrated in the drawing is the same in general construction and arrangement of parts as the machines for trimming the inseams of boots and slices illustrated in the French & Meyer and Johnson rlhe machine comprises a rotary crown shaped trimi'ning knife indicated at l, mounted upon a horizontal shaft 2, and is provided with the usual series of guides for determining the position of the shoe with relation to the knife edge at the point of operation of the knife.

3 indicates the crease guide for engagement in the crease between the welt and the upper, 4l the channel guide for engagement in the channel of the insole mounted on the member ifL which forms a guard for the knife and a. guide for engagement with the sole duringv the inseam trimming operation, and 5. the gage for engagement with the edge of the welt. The work is fed past the edge of the knife by a feeding device com prising gripping jaws arranged in front of the acting edge of the knife which grip the (35i portion of the welt projecting` outwardly betially the same as in the machine illustrated :f

in the French & Meyer and Johnson patents. lhe Z-motion jaw of the feeding device indicated at 7, and -motion jaw indicated at 8, are both supported on a sleeve 9 which is mounted to oscillate and to slide longitudinally on a transverse shaft 10 secured in the machine frame. The el-motion jaw 8 is oscillated to carry it toward and from the cooperating jaw 7 by the oscillatory movements of the sleeve 9 onl the shaft 10 imparted to the sleeve by the engagement of a cam roll 11 on a reari ardly extending arm attached to the sleeve with a Cam groove iu a cam disk 12 mounted on the main shaft 13. Both of the jaws of the feeding device are moved laterally to feed the work by the movement of the sleeve longitudinally of the shaft imparted by the engagement of a cam roll l-/l mounted on the sleeve with a cam groove in the cam disk 12.

During the inseam trimming operation, pieces of material cut from the shoe often lodge in front of the acting edge of the knife between the knife and rear or Q-motion aw of the feeding device. and interfere with the working of the machine. @n account of the disposition of the rear jaw of the feeding device with relation to the knife it is dilii. cult to clear away these scraps. lt is to be noted also that the operating position of the parts of the feeding device with relation to the knife are such as to prevent the removal of the knife. To permit the nieces of inaterial which may lodge between'the parts to be cleared away more readily. and to enable the knife to be removed, another substituted therefor.` and the parts restored to proper adjusted-working relation without waste of labor or time, the jaws of the feeding device are supported so that they may be moved away from the knife and afterward restored to working relation to the knife without detaching them from the machine. ln the construction illustrated the lr-motion jaw S is secured to an arm 15 attached to a collar 1G loosely mounted on the sleeve 9. rlhe arm 15 is caused to oscilla-te with the sleeve 9 and to move longitudinally of the shaft 10 with said sleeve during` the normal operation of the ma chine, by a locking member 17 pivoted on the sleeve 9 and having an inturned end which engages in a suitable recess in the collar 16. The inturned end of the locking member is held in the recess by a thumb nut 18 threaded on a pin 19 mounted on the sleeve 9, and passing through a slot in the member 17. When the nut 18 is loosened, the member 17 is lifted to disengage its end from the recess in the hub by a coiled spring 20. Y

The 2-motion jaw 7 of the gripping and feeding device is secured to an arm 21 attached to a collar 22 loo-sely mounted on the sleeve 9. The collar 22 is confined between the collar 16 and a sleeve 23, also loosely mounted on the sleeve 9, a nut 2e being threaded on the end of the sleeve 9 and engaging the end of the sleeve 23 to hold the parts from longitudinal movement on the sleeve 9. ln order to hold the 2-motion jaw 7 of the feeding device from oscillation with the sleeve 9, a suitable connection is provided between the collar 22 and the sleeve 23 to prevent relative turning movement of the sleeve and collar, and the sleeve 23 is held from turning movement with the sleeve 9 by a pin 24: mounted in the end of Van arm 25 secured to the sleeve 23, which pin operates in a guide bore 26 in the frame. The connection between the collar 22 and the sleeve 23 is arranged so that the collar and sleeve may be disconnected when desired, to permit the jaw 7 of the feeding device to be swung about the sleeve 9 to carry said jaw out of working relation to the knife. In the construction shown, a locking device is employed substantially the same as the locking device for locking the collar 16 to the sleeve 9. rllhis latter locking device comprises a locking member 27 pivoted on the sleeve 23, and having an inturned end for engagement with a recess in the collar 22, a. thumb nut 28 threaded on a pin 29 secured in the sleeve 23 for holding the inturned end of the locking member in engagement with the recess, and a spring 30 for lifting the locking member when the thumb nut is loosened.

ln the construction above set forth the jaws of the feeding device are securely connected with their actuating and controlling mechanisms during the operation of the machine. Vhen it is desired to move the parts of the feeding device away from the knife, the thumb nuts 18 and 23 are loosened, and the jaws of the feeding device may then be swung upwardly about the sleeve 9 away from the front of the knife. rlhe parts of the feeding device may be restored to operating relation to the knife by swinging the parts downwardly about the sleeve 9 until the recesses in the collar 16 and in the collar 22 register with the inturned ends of the locking members 17 and 27, and by screwing down the nuts 13 and 23 until the ends of said locking members are engaged in the recesses in said collars.

The e-motion jaw 8 of the feeding device is yieldingly supported on the arm 15 so that the said aw may yield when the welt is engaged between this jaw and the 2-motion jaw 7.. By yieldingly supporting the jaw 8 of the feeding device, the jaws are enabled to grip the welt in a certain and reliable manner, regardless of its thickness.

The t-motion jaw 3 is also adjustably supported on the arm 15 so that it can be adjusted to accommodate welts of different thicknesses. n the construction illustrated, the jaw 8 is pivoted at 31 upon a block 32 secured to the arm 15. The block 32 is recessed, as illustrated in Fig. 5, to receive an upwardly projecting arm 3f on the jaw 8, and a leaf spring 35 is interposed between the arm 34 and the opposite face of the recess. T his spring permits the jaw 3 of the feeding device to yield when brought into engagement with the welt. The block 32 is mounted for forward and rearward adjustment on the arm 15, atongue and groove connection being provided between the block and the arm. The block is adjusted on the arm by means of a threaded adjusting rod 36, the inner end of which is rotatably secured to the block 32, and the threaded shank of which engages in asuitably threaded lug on the arm 15. The block 32 is held in adjusted position upon the arm by means of screws 37 passing through slots in the arm 15 and screwed in the block 32.

The crease guide 3 is adjustably secured by means of a clamping screw 33 to the 2-motion jaw 7 of the feeding device. By mounting the crease guide in this manner, the guide may be swung outwardly away from the front of the knife with the jaws of the feeding device. In prior commercial machines of this type the crease guide is mounted so that it is fixed with relation to the feeding devices, and the feeding of the shoe takes place against the resistance of the crease guide. In the present machinethe crease guide is mounted so that it moves laterally with the feeding devices. The friction of the shoe against the crease guide during the feeding of the shoe is therefore eliminated. 1When the jaws of the feeding device return after their feeding movement, the lateral return movement of the crease guide therewith breaks the friction between the shoe and the crease guide, and the crease guide therefore has little tendency to move the shoe at this time.

The channel guide et, which engages the insole of the shoe inside the channel, is mounted to turn about an axis substantially coincident with the axis of the trimming knife, and is yieldingly pressed upward into engagement with the work, as in the machine illustrated in the Johnson patent, rlie support et on which the channel guide is mounted is extended downwardly in front of the acting portion of the knife to form a guard for the knife, and the outer face thereof constitutes a guide against which the outer surface of the insole is held during the inseam trimming operation. The relation of the channel guide and support to the knife is such that scraps of leather often lodge between the knife and these parts. The normal positions of the channel guide and the support are such that access to the interior of the knife is obstructed, making it diflicult to get at the fastening devices by which the knife is secured to the knife carrying shaft, or to remove the waste material which may accumulate within the knife, and it has heretofore been impossible in machines of this type to remove the knife without first detaching the support from the machine. To enable such scraps to be dislodged, and to permit the knife to be removed without difficulty when desired, the support 4; is arranged so that it may be moved away from the front of the knife 'without detaching it from the machine. ln

the construction illustrated in the drawings, the support 4 on which the channel guide is mounted is adjustably secured to a bracket l() mounted to turn on a stud ll arranged substantiallj7 (3o-axially with the trimming knife. rlhe channel guide is yieldingly pressed upward by a spring 4Q engaging the bracket 40, and the upward movement of the guide is limited by the engagement of a stop screw 113 with a suitable stop 44. To enable the channel guide and the support on which it is mounted to be swung outwardly away from the front of the knife, the stud ill is mounted in .a block 4-5 which is pivoted on a substantially vertical stud carried by forwardly projecting lugs 47 on the frame of the machine. The parts supported on the stud i6 are normally held in the positions illustrated in the drawings, with the channel guide in working relation with the knife, by an arm el-S pivoted at i9 on the frame, and provided with a slot at its forward end which is arranged to receive a portion of the stud 4-1 when the arm is dropped down into the position illustrated in the drawings, the arm being` then engaged by the head of the stud and a collar formed on the stud. swing the channel guide and the support si away from the knife, he raises the arm 48, and then swings the support il to the right (Fig. l) about the vertical shaft 46. The parts may be quickly restored to operating positions by swinging the support lack to the left, and bringing the arm 48 down so that the stud 4l is engaged inthe slot in said arm.

In order to enable the trimming knife to be adjusted to bring it into proper position with4 relation to the devices cooperating therewith for feeding and guiding the shoe, the knife isv mounted for forward and rearward adjustment, and also for lateral adjustment, on the frame. To this end the bracket 50 in which the shaft f2 of the knife is journaled is secured to a forwardly and rearwardly adjustable slide 5l, and the slide 5l is mounted upon a slide 52 which is arranged for lateral adjustment in a direction When the operator desires to substantially at right angles to the direction of adjustment of the slide 51. The slide 51 is slidably held on the slide 52 by a block 53, and the slide 5l is adjusted rearwardly on the slide 59. by means of a thumbv nut threaded on a rod secured to the slide 5l, said nut engaging a lug 56 on the frame. A. coiled spring (not shown) engages the rear end of the slide 5l, and acts to yieldingly press the slide forward in its guide. Nuts 57 are threaded on the rod 55 in front of the lug 56, to assist in adjusting the slide and in holding it in adjusted position. rThe slide is secured to the frame by means of and screwed into theframe. The slide is adjusted laterally on the frame by means of an adjusting screw the reduced eX- tremity of which is rotatably held in a block (50 secured to the slide, and the 'threaded shank of which engages a thread block Gl secured to the frame of the machine. rl'he adjusting screw 59 is provided with a hand wheel G2, and the slide may be quickly adjusted to position trie .g ally with relation to the devices for guiding and feeding the shoe by the manipulation of the hand wheel.

rifhe channel guide of the machine illustrated in the drawings consists of a lblock shaped to enter the channel of the inner sole, and mounted for forward and rearward adjustment on the support il?. A tongue and groove connection is provided between the channel guide and the support, and the channel guide is secured in adjusted position on the support by a suitable screw 62a passing through a slot in a rearwardly projecting arm on the channel guide and screwed into the support. lt will be noted from an inspection particularly of Figs. l and l that the channel guide is constructed to form a sharp abutment or shoulder at its left-hand portion wnich is located close to the edge of the knife. The channel guide therefore supports the substance of the insole close to the operating edge of the knife. In the present machine the knife is rotated in a direction toward the work engaging face of the channel guide. By this construction and arrangement of the channel guide and trimming knife, the inseam is trimmed in a more reliable and satisfactory manner than in prior machines. ln order to rotate the knife, a spur gear G3 is mounted upon the knife shaft 2, and meshes with an intermediate gear 64 carried by the knife supporting slide, which gear in turn meshes with a gear G5 mounted upon the main shaft 13 of the machine. This arrangement of gearing is such that the knife is rotated in a direction to carry its forward operating edge downwardly or toward the work engaging face of the channel guide.

ln addition to trimming the inseam it is screws engaging in slots in the slide ,A

trimming knife laterq necessary in order to prepare the shoe for the reception of the outsole to skive off the projecting free ends of the welt to bring the ends of the welt down to a thin edge. rllhis operation is known in the art as welt batting. ln the present invention a machine is produced which comprises a single trimming knife, and which i provided with devices for positioning the inseam with relation to the knife, and with means for supporting the welt in welt butting position and for guiding the 'welt and shoe during the welt butting operation, all arranged compactly and in such manner that the shoe after being subjected to one operation may be easily and conveniently presented to the knife to subject it to the second operation.

In skiving or butting off the end of the welt in the illustrated embodiment of the invention, the welt end is first brought into line with the edge of the knife, and the shoe is then moved laterally to carry the end of the welt across the knife edge. T he machine is provided with improved devices for determining the position of the body of the shoe and the welt end with relation to the knife during the welt butting operation, constructed and arranged to bring the end of the welt into line with the edge of the knife at the proper angle with relation to the acting edge of the knife, to cause the knife to make a skiving cut zicross the end of the welt, and to guide the welt and the shoe with relation to the knife as the shoe is moved laterally to carry the welJr across the knife edge. The member il is extended downwardly in front of and beneath the knife, and is cut away at 66 to form an opening through which the knife projects. rllhe portion of the member la to the right of the edge of the knife is provided with a welt guiding surface 68 extending at an angle across the line of the knife edge, as shown in Fig. '7. A plate 69 is pivoted at 70 on the member /a, and is recessed at 7l to receive the acting edge of the knife, thereby forming a shoulder 72. rlhe inner face of the shoulder 72 is provided with a welt guiding surface 73 substantially parallel with the surface GS of the member Ll, and the upper forward portion of the plate 69 is constructed in the form of a thin wedge for engagement between the welt end and the adjacent face of the insole. The plate 69 normally occupies a downward and forward position with relation to its operating position to enable the forward por-- tion of said plate to be inseted between the welt end and the inner sole, said plate being held in such position by a spring 74. in the operation of skiving off the end of. the welt, the shoe is held in a position with its longitudinal axis substantially parallel with the plane of rotation of the knife, and

is manipulated to insert the welt between the inner surface of the shoulder 72 and surfa 68 of 'the member el, and to bring the forward wedge-shaped portion of the plate G9 close in to the point where the welt is attached to the insole. lllhen the plate 69 has thus been inserted between the welt end and the insole, the shoe is moved upwardly, thereby lifting the plate (39 by the Contact of the outer face of the insole therewith, until the welt is engage i between the welt guiding faces 68 and rthis upward movement of the shoe and the plate brings the end of the welt into line with and across the edge of the knife at the `proper angle for the skiving cut to be n ade. rllhe shoe is then moved laterally to carry the end of the welt across the knife edge, the shoe being guided by its engagement with the outer face of the plate 69, and the welt end eing supported and guided by its engavement with the surfaces 68 and 73. When the welt end has been skived or butted off in this manner the shoe is removed and the plate G9 is restored to its downward and forward position by the spring 7%. lt will be noted that the forward edge of the plate 69 serves as a gage to determine the distance at which the welt end is severed from the point of attachment of the welt to the upper and insole.

l/Vhile the invention has been illustrated and described as embodied in a machine of the same general construction and arrangement of parts as the machine shown in the llrench t Msj-,fer and Johnson patents, it is to be understood that except as defined in the claims the invention is'fnot limited to any particular shoe trimming machine or type of machine, or to any particular construction or arrangement of parts.

Having explained the nature and object of the invention, and specifically described a machine embodying the same in its pref form, what is claimed is ztrimming machine, having, in combination, a rotary trimming knife, a guide for determining the position of the work with relation to the knife, a shaft on which the knife is mounted, a slide supporting the shaft and adjustable longitudinally of the shaft, and means for adjusting the slide to iosition the knife with relation to the guide.

2. trimming machine, having, in combination, a rotary trimming knife, means for guiding the work with relation to the knife, a shaft on which the knife is 'mounted, .supporting means for the shaft having provisions for adjustment to position the knife with relation to the work guiding means comprising an yadjustable slide on which the shaft is journaled, and a second slide on which the first slide is mounted arranged for adjustment.angularly with relation to the direction of adjustment of the first slide.

3. A trimming machine, having, in combination, a rotary trimming knife, means for guiding the work with relation to the knife as it is moved past the knife, a shaft on which the knife is mounted and provision for adjusting the knife with relation to the work guiding means comprising a slide on which the shaft is journaled aranged for forward and rearward adjustment, a second slide on which the first slide is mounted arranged for lateral adjustment, and means for adjusting the slides.

4. A. trimmin0` machine, having, in combination, a rotary trimming knife, means for positioning the work with relation to the knife normally located adjacent the acting edge of the knife so as to obstruct access thereto and mounted for movement away from the knife, and mechanism for locating the shoe positioning means in normal position after it has been moved away from the knife.

5. A trimming machine, having', in combination, a trimming knife, and work feeding means normally located adjacent the knife so as to obstruct access thereto and mounted for movement out of knife obstructing position.

6. A trimming machine, having, in combination, a trimming knife, and work guiding and feeding means normally located adjacent the knife so as to obstruct access thereto and mounted for movement out of knife obstructing position.

7. rin inseam trimming machine, having, in combination, a rotary trimming knife, a crease guide for engagement in the crease between the welt and the upper, welt gripping and feeding jaws for feeding the shoe past the knife arranged in front of the knife, and provision for swinging the crease guide and the gripping and feeding jaws away from the knife.

8. A trimming machine, having, in combination, a rotary trimming knife, guides for the shoe arranged to engage the outer face of the insole, and a swinging support for the guides arranged so that the guides may be swung away from the knife and swung back into operative position without disturbing the position of the guides in the direction of the axis about which they are arranged to swing.

9. An inseam trimming machine, having,

in combination, a rotary trimming knife, a

guide for the shoe arranged to engage in the channel. of the insole, a spring-pressed support for the guide mounted to swing in a direction to carry the guide away from the knife, and means for locating the guide in operating position after it has been moved away from the knife.

10. An inseam trimming machine, having,

in combination, a rotary trimming knife, a.

movable support, a guide for the shoe arranged to engage in the channel of the insole and mounted for adjustment on said support in a. direction transverse to the acting edge of the knife, and means for yieldingly engaging the guide in the channel of the insole during the trimming operation.

11. An inseam trimming machine, having, in combination, a trimming knife, a. guide for engagement in the channel of the insole close to the edge of the knife, and means for moving the knife in a direction to carry the operating portion of its edge toward the face of the guide which engages the lip of the insole. Y

12. A shoe trimming machine, having, in combination, a trimming knife, a welt end rest normally ogccupying a forward and downward position with relation to its operating position, and mounted for movement to carry the welt end into line with the edge of the knife, and means for guiding the welt across the edge of the knife as the shoe is moved laterally with relation to the knife.

13. A shoe trimming machine, having, in combination, a trimming knife, a welt rest for insertion between the end of the welt and tie shoe and arranged to be moved by the movement of the shoe to carry the welt end into line with the edge of the knife, and means for guiding the welt end across the edge of the knife as the shoe is moved laterally.

14.. A shoe trimming machine, having, in combination, a trimming knife, and a welt end rest for supporting the welt end in position to be trimmed and for guiding the welt across the edge of the knife as the shoe is moved laterally, said welt rest being movably supported and normally occupying a position away from the edge of the knife to receive the shoe.

15. A shoe trimming machine, having, in combination, a trimming knife, and work positioning means arranged to engage the shoe bottom and the inner face of the welt end before the shoe reaches welt cutting position and to guide the shoe and welt as A the shoe is moved laterally to carry the welt across the edge of the knife.

16. A shoe trimming machine, having, in combination, a trimming knife, and shoe positioning means arranged to engage the shoe between the welt and the inner sole and to guide the shoe into position to carry the welt into line with the edge of the knife, and having provision for guiding the welt across the edge of the knife as the shoe is moved laterally.

17. A shoe trimming machine, having, in combination, a trimming knife, and a welt end rest for insertion between the welt and inner sole and having provision for guiding the welt across the edge of the knife as the shoe is moved laterally.

ici

CAD

misere 18. EL shoe trimming machine, having, in combination, a trimming knife, a welt end rest for insertion between the welt and the inner sole normally occupying a position away from the knife to receive the shoe and mounted for movement to carry the slice into predetermined position with relation to the knife, and means carried by said rest for guiding` the welt across the edge of the knife during a lateral movement of the shoe.

19. A shoe trimming machine, having, in combination, a bodily immovable trimming knife and a welt end rest movable toward and from the knife and comprising a plate formed and arranged to be introduced betweend the shoe bottom and an end portion of the welt which is to be severed while the rest is avay from the knife, and to move with the shoe to carry the welt into line with the edge of the knife and to protect the shoe bottom from injury by the knife during the welt cutting operation.

20. A shoe trimming machine, having, in combination, a rotary trimming knife, a guard extending about the forward edge of the knife, means supported on said guard for positioning and guiding the shoe as the inseam thereof is presentedto the edge of the knife, and means car 1ied by said guard for supporting the welt end in welt butting position with relation to the knife. v

l. A shoe 'trimming machine, having, in combination, a rotary trimming knife, a guard extending about the front of the knife, means for locating and guiding the shoe in inseam trimming position with relation to the knife, and means carried by said guard for guiding the welt at an oblique angle across the path of the knife and for positioning and guiding the body of the shoe as the welt end is presented to tl e knife.

22. i shoe trimming machine, having, in combination, a rotary trimming knife, a guard extending' about the forward portion of the knife, means for `positioning and guiding the shoe as the inseam is presented to the knife comprising a channel guide and a guide for the shoe bottom carried by Said 5d, welt end guide carried by said guard extending at an angle oblique to the path of the knife, and a guide for engagement with the shoe bottom as the welt end (YN bei is presented to tl e knife supported on said guard.

i 9,3. A shoe trimming machine, iaving, in combination, a rotary trimming knife, inseam trimming' guides, and devices for guiding tie welt end at an oblique angle across the path of the knife arranged in cooperative relation with the knife.

A shoe trimming machine, having, in combination, a rotary trimming knife, a

' fixed welt end guide extending at an oblique angle across the path of the knife, and a for determining the distance at which the welt is severed. from the point of attachment of the welt to the upper and insole.

il?. A shoe trimming machine, having, in combination, a rotary trimming knife, and a welt end guide arranged at an oblique angle to the path of the knife and extending beyond the knife for bringing the welt end into line with the edge of the knife and for guiding the welt end across the edge of the knife as the shoe is moved laterally.

2G. A trimming machine, having, in combination, a rotary trimming knife, a guide for determining the position of the shoe with relation to the edge of the knife mounted adjacent the knife, a swinging support for the guide pivoted on an axis sub stantially parallel with the axis of the knife so that the guido may be swung out of knife obstructing position, and means acting on the support to maintain the guide in operating position.

27. A trimming machine, having, in combination, a rotary trimming knife, a shaft substantiallj,7 parallel with the axis of the knife, a guide controlling member for controlling the operating position of the guide, a guide support pivoted on the shaft, a guide for determining the position of the -shoe with relation to the knife edge mounted on the support adjacent the knife, and locking devices for locking the guide support to' said member to hold the guide in operating position arranged to permit the guide support to be unlocked from said member a d swung about the shaft out of knife obstructing position.

28. A trimming machine, having, inA combination, a rotary trimming knife, a shaft substantially parallel with the axis of the knife, a guide support mounted on the sha ft, a guide for determining the position of the shoe with relation to the knife edge mounted on the guide support adjacent the knife, devices for holding the guide in operating position, and connections between said devices and the guide support arranged to permit the guide support to be disconnected from said devices and swung about the shaft to carry the guide out of knife obstructing position.

AA trimming machine, having, in combination, a rotary trimming knife, a guide for determining the position of the shoe with relation to the knife edge mounted adjacent the knife, a guide support mounted for swinging movement to carry the guide out of knife obstructing position, and means acting on the support for yieldingly holdthe guide in operating position.

30. A trimming machine, having, in combination, a rotary trimming knife, a guide support mounted for swinging movement acting yielclingly on the support to maintain in a plane substantially parallel with the the guide in operating position.

191% omolenlelt of tl??- kmfe a giuda ALEXANDER MCKLOP ALEXANDER. Ioi deteiminmg me position of the shoe f with relation to the knife edge mounted llVitnesses: on the support for uclplstment in L cllrec- C. M. SINGERBEAUX, tlon transverse to the knife odge, and means K. C. UNIAG.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

